Chrysanthemum plant named `G19FON01WH&#39;

ABSTRACT

A new and distinct cultivar of Chrysanthemum plant named ‘G19FON01WH’, characterized by its upright, outwardly spreading and uniformly rounded plant habit; vigorous growth habit; freely branching habit; dense and full plant habit; dark green-colored leaves; uniform and freely flowering habit; long flowering period; and decorative-type inflorescences with ray florets that are white in color.

Botanical designation: Chrysanthemum X morifolium.

Cultivar denomination: ‘G19FON01WH’.

CROSS-REFERENCED TO CLOSELY-RELATED APPLICATIONS

Title: Chrysanthemum Plant Named ‘G19FON04YE’

Applicant: Ellen Sofie Pieters

Filed: Jan. 13, 2018 Ser. No: 15/732,910

Title: Chrysanthemum Plant Named ‘G19FON11OR’

Applicant: Elien Sofie Pieters

Filed: Jan. 13, 2018 Ser. No.: 15/732,912

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar ofChrysanthemum plant, botanically known as Chrysanthemum X morifolium andhereinafter referred to by the name ‘G19FON01WH’.

The new Chrysanthemum plant is a product of a planned breeding programconducted by the Inventor in Oostnieuwkerke, Belgium. The objective ofthe breeding program is to create new uniformly mounding and freelyflowering Chrysanthemum plants with unique and attractive ray floretcoloration.

The new Chrysanthemum plant is a naturally-occurring whole plantmutation of Chrysanthemum X morifilum ‘Fonti Pink’, not patented. Thenew Chrysanthemum plant was discovered and selected by the Invenntor asa single plant from within a population of plants of ‘Fonti Pink’ in acontrolled greenhouse environment in Oostnieuwkerke, Belgium in October,2016.

Asexual reproduction of the new Chrysanthemum plant by vegetativeterminal cuttings was first conducted in a controlled greenhouseenvironment in Oostnieuwkerke, Belgium in January, 2017. Asexualreproduction by vegetative terminal cuttings has shown that the uniquefeatures of this new Chrysanthemum plant are stable and reproduced trueto type in successive generations.

SUMMARY OF THE INVENTION

The following traits have been repeatedly observed and are determined tobe the unique characteristics of ‘G19FON01WH’. These characteristics incombination distinguish ‘G19FON01WH’ as a new and distinct Chrysanthemumplant:

1. Upright, outwardly spreading and uniformly rounded plant habit;vigorous growth habit.

2. Freely branching habit; dense and full plant habit.

3. Dark green-colored leaves.

4. Uniform and freely flowering habit.

5. Long flowering period.

6. Decorative-type inflorescences with ray florets that are white incolor.

Plants of the new Chrysanthemum can be compared to plants of themutation parent, ‘Fonti Pink’. Plants of the new Chrysanthemum differprimarily from plants of ‘Fonti Pink’ in the following characteristics:

1. Plants of the new Chrysanthemum are more uniform than plants of‘Fonti Pink’.

2. Ray florets of plants of the new Chrysanthemum are white in colorwhereas ray florets of plants of ‘Fonti Pink’ are pink in color.

Plants of the new Chrysanthemum can be compared to plants of theChrysanthemum X morifolium ‘G19FON04YE’, disclosed in U.S. Plant patentapplication Ser. No. 15/732,910. In side-by-side comparisons, plants ofthe new Chrysanthemum differ primarily from plants of ‘G19FON04YE’ inray floret color as ray florets of plants of the new Chrysanthemum arewhite in color whereas ray florets of plants of ‘G19FON04YE’ are yellowin color.

Plants of the new Chrysanthemum can be compared to plants of theChrysanthemum X morifolium ‘G19FON11OR’, disclosed in U.S. Plant patentapplication Ser. No. 15/732,912. In side-by-side comparisons, plants ofthe new Chrysanthemum differ primarily from plants of ‘G19FON11OR’ inray floret color as ray florets of plants of the new Chrysanthemum arewhite in color whereas ray florets of plants of ‘G19FON11OR’ are greyedorange in color.

Plants of the new Chrysanthemum can also be compared to plants ofChrysanthemum X morifolium ‘Amiko White’, disclosed in U.S. Plant Pat.No. 22,833. In side-by-side comparisons, plants of the new Chrysanthemumdiffer primarily from plants of ‘Amiko White’ in the followingcharacteristics:

1. Plants of the new Chrysanthemum are more uniformly rounded thanplants of ‘Amiko White’.

2. Plants of the new Chrysanthemum flower about two to three weeksearlier than plants of ‘Amiko White’.

BRIEF DESCRIPTION OF THE PHOTOGRAPH

The accompanying photograph illustrates the overall appearance of thenew Chrysanthemum plant snowing me colors as true as it is reasonablypossible to obtain in colored reproductions of this type.

The photograph comprises a side perspective view of a typical floweringplant of ‘G19FON01WH’ grown in a container.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photograph and following observations andmeasurements describe plants grown in 19-cm containers in an outdoornursery in Oostnieuwkerke, Belgium during the summer and autumn andunder cultural practices generally used in commercial Chrysanthemumproduction. During the production of the plants, day temperatures rangedfrom 20° C. to 25° C. and night temperatures ranged from 12° C. to 18°C. Plants were 20 weeks old-when the photograph and detailed descriptionwere taken. In the following description, color references are made toThe Royal Horticultural Society Colour Chart, 2005 Edition, except wheregeneral terms of ordinary dictionary significance are used.

-   Botanical classification: Chrysanthemum X morifolium ‘G19FON01WH’.-   Parentage: Naturally-occurring whole plant mutation of Chrysanthemum    X morifolium ‘Fonti Pink’, not patented.-   Propagation:    -   -   Type cutting.—By vegetative tip cuttings.        -   Time to initiate roots, summer.—About two weeks at            temperatures about 20° C.        -   Time to initiate roots, winter.—About 20 days at            temperatures about 20° C.        -   Time to produce a rooted young plant, summer.—About 30 days            at temperatures about 20° C.        -   Time to produce a rooted young plant, winter.—About 40 days            at temperatures about 20° C.        -   Root description.—Fine, fibrous typically light brown in            color, actual color of the roots is dependent on substrate            composition, water quality, fertilizer type and formulation,            substrate temperature and physiological age of roots.        -   Rooting habit.—Freely branching; medium density.-   Plant description:    -   -   Appearance.—Perennial decorative-type Chrysanthemum; stems            upright and outwardly spreading giving a uniformly rounded            appearance to the plant; plants roughly spherical; very            freely branching habit, about 20 primary lateral branches            develop, each primary lateral branch with multiple secondary            branches; pinching enhances lateral branch development;            dense and full plant habit; vigorous growth habit; plants            flexible, not brittle.        -   Plant height.—About 45 cm.        -   Plant width.—About 60 cm.        -   Lateral branches.—Length: About 30 cm. Diameter: About 2 mm            to 3 mm. Internode length: About 3 cm. Strength: Moderately            strong, flexible. Texture: Pubescent, fine; longitudinally            ridged. Color: Close to 141A.        -   Leaves.—Arrangement: Alternate, simple. Length: About 4.5 cm            to 6 cm. Width: About 2.5 cm to 3 cm. Apex: Rounded. Base:            Attenuate. Margin: Palmately lobed and serrate, sinuses            between lateral lobes divergent to parallel. Texture, upper            and lower surfaces: Slightly pubescent. Venation: Palmately            reticulate. Color: Developing leaves, upper surface: Close            to 141A. Developing leaves, lower surface: Close to 139C.            Fully expanded leaves, upper surface: Close to 137A;            venation, close to 148C. Fully expanded leaves, lower            surface: Close to 137C; venation, close to 147B to 147C.            Petioles: Length: About 1 cm. Diameter: About 2 mm. Texture,            upper and lower surfaces: Slightly pubescent; slightly            rough. Color, upper surface: Close to 137A. Color, lower            surface: Close to 137C. Stipules: Length: About 1 cm.            Diameter: About 2 mm. Texture, upper and lower surfaces.            Slightly pubescent; rough. Color, upper and lower surfaces:            Close to 137A.-   Inflorescence description:    -   -   Appearance.—Decorative-type inflorescence form;            inflorescences borne on terminals above foliar plane; disc            and ray florets arranged acropetally on a capitulum.        -   Fragrance.—Slightly fragrant, pungent.        -   Flowering response.—Under natural season conditions, plants            flower in early September in Belgium; flowering response            time, about 32 days.        -   Postproduction longevity.—Inflorescences maintain good color            and substance for about 38 to 40 days in an outdoor nursery;            inflorescences persistent.        -   Quantity of inflorescences.—About 20 to 25 inflorescences            develop per lateral branch.        -   Inflorescence buds.—Height: About 6 mm. Diameter: About            8 mm. Shape: Globular. Color: Close to 8C.        -   Inflorescence diameter.—About 6 cm.        -   Inflorescence depth (height).—About 3.5 cm.        -   Disc diameter.—About 7 mm; inconspicuous.        -   Receptacle diameter.—About 3 mm.        -   Receptacle height.—About 2.5 mm to 3 mm.        -   Receptacle color.—Close to 144B.        -   Ray florets.—Length: About 3.5 cm to 5 cm. Width: About            7 mm. Shape: Oval. Apex: Rounded. Base: Attenuate. Margin:            Entire. Aspect: Mostly flat. Texture and luster, upper and            lower surfaces: Smooth, glabrous; matte. Number of ray            florets per inflorescence: About 125 to 150 arranged in            about seven whorls. Color: When opening, upper surface:            Close to 8C. When opening, lower surface: Close to 155C.            Fully opened, upper surface: Close to 155C; proximally,            close to 8C; color becoming closer to 155C development.            Fully opened, lower surface: Close to 155C; color does not            change with development.        -   Disc florets.—Length: About 3 mm. Diameter: About 0.5 mm to            1 mm. Shape: Tubular; apices acute. Number of disc florets            per inflorescence: About 60 to 80 massed at the center of            the inflorescence. Texture and luster: Smooth, glabrous;            glossy. Color, immature: Close to 145A. Color, mature: Close            to 12A.        -   Phyllaries.—Number of phyllaries per inflorescence: About 25            arranged in two or three whorls. Length: About 4 mm to 6 mm.            Width: About 2 mm to 3 mm. Shape: Ovate. Apex: Rounded.            Base: Rounded to truncate. Margin: Entire. Texture, upper            and lower surfaces: Smooth, glabrous. Color, upper surface:            Close to 137A. Color, lower surface: Close to N137B.        -   Peduncles.—Length, terminal peduncle: About 5 cm. Length,            fourth peduncle: About 7 cm. Length, seventh peduncle: About            7 cm. Diameter: About 2.5 mm. Angle: About 30° from            vertical. Strength: Strong. Texture: Slightly pubescent.            Color: Close to 146B.        -   Reproductive organs.—Androecium: Not observed. Gynoecium:            Not observed.        -   Seeds and fruits.—To date seed and fruit production have not            been observed on plants of the new Chrysanthemum.-   Garden performance: Plants of the new Chrysanthemum have    demonstrated excellent garden performance and will tolerate    temperatures ranging from about 0° C. to about 45°C.

It is claimed:
 1. A new and distinct Chrysanthemum plant named‘G19FON01WH’ as illustrated and described.